Table 1

Sensing technologies using smart capsules

NameDimension (mm)Sensing parametersEvaluation
pHTemperature (°C)Pressure (mm Hg)Gas
Bravo72 25×6×5.51–7NANANACA, in vivo
alphaONE75 26.5×6×5.51–9NANANACA, in vivo
Heidelberg78 21×Ø 81–8NANANACA, in vivo
SmartPill81 26.8×Ø 11.70–925–490–350NACA, in vivo
eCelsius96 17.7×Ø 8.9NA25–45NANACA, in vivo
VitalSense97 23×Ø 8.7NA32–42NANACA, in vivo
CorTemp98 22.4×Ø 10.9NA10–50NANACA, in vivo
myTemp99 20×Ø 8NA30–45NANACA, in vivo
IntelliCap84 26.7×Ø 111–820–40NANACA*, in vivo
BEST88 38×8×41.9–12NANANALP, in vivo
Cheng et al 87 26×Ø 14.51–9NANANALP, in vivo
Xu et al 89 26×Ø 110–1435–4295–110NALP, in vivo
Zhao et al 90 22×Ø 111–1034–4270–150NALP, in vivo
Benken and Gianchandani102 24×Ø 12NANA0–262NALP, in vivo
Kim et al 107 30×Ø 13NANA0–1103NALP, in vivo
Rehan et al 106 30×Ø 12NANA0–265NALP, ex vivo
Kalantar-Zadeh et al 16 26×Ø 9.8NAYesNAYesLP, in vivo
Atmo Biosciences112 28×Ø 11NAYesNAYesCA, in vivo
  • CA*, discontinued; CA, commercially available; LP, laboratory prototype; NA, not available.